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CVE-2021-40396

nvd nist
Published: Jan 28, 2022Modified: Jun 17, 2026

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8.8
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Exploitability: 2.0 / Impact: 6.0
Source: NVD

Description

A privilege escalation vulnerability exists in the installation of Advantech DeviceOn/iService 1.1.7. A specially-crafted file can be replaced in the system to escalate privileges to NT SYSTEM authority. An attacker can provide a malicious file to trigger this vulnerability.

Affected (1)

Advantech
1 product
Deviceon/iservice
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Deviceon/iservice
Version 1.1.7

Related CWEs

CWE-276
Incorrect Default Permissions
During installation, installed file permissions are set to allow anyone to modify those files.

References (2)

Source: talos-cna@cisco.com
ExploitThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
ExploitThird Party Advisory

Timeline

No history available yet.